I used a molle mount version on the front of my IBA a few times during a deployment. It was new in the wrap...seemed pretty decent, but did lock the pistol in once...not sure why.
They seem cheap and effective, but the AD issue is curious.
I don't think that LE is at the top of the heap, but they tend to identify stuff that affects the lowest skill-set...so there's some merit to the warnings.
They've done a little redesign I believe. The button appears to be more of a "lay your finger on it" now, than a press the shrouded button type.
Cheap....that's the attraction.